Ellis m



(-No Model.) v v E. M. VAN VALKENBURG. NECK YOKE CENTER.

No. 512,768 Patented Jan. 16, 1894.

WITNESSES INVENTOR flttorney AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA Y.

W t W UNITED STATES PATENT OFFICE.

ELLIS M. VAN VALKENBURG, OF RAOINE, WISCONSIN, ASSIGNOR TO THE BELLECITY BOLSTER SPRING COMPANY, OF SAME PLACE.

NECK-YOKE CENTER.

SPECIFICATION forming part of Letters Patent No. 512,768, dated January16, 1894.

Application filed June 2, 1 89 3- To all whom it may concern:

Be it known that I, ELLIs M. VAN VALKEN- BURG, a citizen of the UnitedStates, and a resident of Racine, in the county of Racine and State ofWisconsin, have invented certain new and useful Improvements inNeck-Yoke Oeuters; and I do declare the following to be a full, clear,and exact description of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same,reference being had to the accompanying drawings, and to letters ofreference marked thereon, which form a part of this specification.

Figure l of the drawings is a front view of the invention. Fig. 2 is atransverse section taken on line a: as Fig. 1. Fig. 3 is a detail viewin perspective of the swivel and Fig. 4t is a detail view of theattachment plate.

This invention has relation to certain new and useful improvements inneck yoke centers, the object being to provide a simple, effective,convenient and durable device of this character; and the inventionconsists in the novel construction and combination of parts, all ashereinafter described and pointed out in the appended claim.

Referring to the accompanying drawings, the letter A indicates a broadring, preferably of metal, and designed to receive the pole. Said ringis provided with a lining B of some elastic or yielding material, suchas leather or rubber. To retain this lining in place, the inner face ofthe ring is made concave, with flanges a at each edge. The lining isforced into the concavity between the flanges, and is held securelyagainst displacement. Projecting from the upper portion of said ring aretwo parallel lugs O, 0, having a space between them to receive the eyeportion d of a swivel D, said lugs being perforated to receive ahorizontal pivot boltor pin E, which engages said lugs and the eye d.

F designates the attachment plate, which is of oblong form concaved onits upper face, I

and provided with perforations f, by means of which it may be secured bybolts or screws. At its central portion the said plate is formed with acircular concavity g, which receives Serial No. 476,373. (No model.)

the circular head h of the swivel D. I Said head is shown as secured inplace by means of a wedge h, driven into the upper end por- .tion of theswivel into which said head h is fitted. This arrangement it will beseen atfords a bearing for the said ring at each side, above andconcentric with the horizontal pivot pin. These bearings'it will be seenalso serve as stops to limit the movement of the ring on said pivot pinbeyond certain points. Said swivel D is also provided with a broad facewhich bears against the under face of the attachment plate. The upperend portions of the lugs C, O, are made convex, and afford bearings forconcavities c, c, on the portion D of the swivel. It will be observedthat the yoke ring is capable of a free rotary movement, by reason ofthe swivel, and also of a free forward and back movement upon thehorizontal pin E.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

In a neck-yoke holder, the combination with an integral ring formed witha pair of parallel lugs O, O at its upper portion, the upper ends ofsaid lugs being of arcuate convex form, and the attachment plate, of theswivel piece D forming the connection between said ring and plate, saidswivel piece comprising an apertured tongue received and pivoted betweenthe said lugs O, O, a portion D formed at the sides with arcuateconcavities c, a, bearing on the convex ends of said lugs, saidconcavities and convexities having a curvature concentric with thebearing for the pivot pin, a reduced upper portion extending looselythrough said attachment plate, a circular bearing head h on the upperend of said reduced portion, and means for securing said head rigidly tosaid reduced portion,substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

ELLIS M. VAN VALKENBURG.

Witnesses:

O. R. CARPENTER, JOHN H. HAPP.

